Mobile app for tracking testicular thermal contraception

A tool for tracking thermal contraception by testicular lifting on Android:

Track session durations with a customizable daily goal
Quick control widget to start or stop a session without opening the app
Calendar history of your sessions
Customizable notifications to remind you when to put on or take off your device
Schedule your days with personalized reminders

Ring Mate screenshot – Tracking a thermal contraception wearing session

The method

Testicular thermal contraception, made easier with the app

Testicular thermal contraception involves wearing a testicle-lifting device (a ring, or specially designed briefs) that keeps the testicles at body temperature. This sustained warmth temporarily and reversibly inhibits sperm production. Effectiveness depends on consistency: wearing the device for enough hours each day. Since sperm production follows a cycle of approximately 3 months, the same period of regular wear is needed before reaching the contraceptive threshold. Ring Mate helps you stay on track with your daily wearing goal.

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Daily session tracking

Start and stop your wearing sessions with a single tap from your phone's lock screen. Ring Mate automatically accumulates the total time worn throughout the day.

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Customizable daily goal

Set your recommended daily wearing duration (e.g. 15h), and the app helps you meet your goal through customizable notifications to avoid any forgotten sessions.

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History & calendar

Check your tracking calendar to assess your consistency. A complete history of your thermal contraception sessions is always available.

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Overnight sessions

The app intelligently handles sessions that start one day and end the next, correctly splitting the time across each calendar day.

A word about the project

An app built by a user, for those who need it

I developed RingMate because I practice thermal contraception myself and couldn't find any tool to effectively track my sessions. My sport (surfing) doesn't allow me to wear the ring continuously or on a fixed schedule. Counting hours in my head every day had become a real headache, so I built the tool I needed.

The app helps me enormously day to day — the quick control widget on the lock screen alone prevents a lot of missed sessions.

I also wanted something simple: not having to unlock my phone and open the app every time I put on or take off the ring. That's why you can choose to activate a quick control widget that lets you control the app without unlocking your phone. By making RingMate available, I simply hope it can help others in my situation.

The app just launched — there are probably things to refine, but I'm happy with the result. If you have feedback or suggestions, feel free to write to me. I'm motivated to improve the app to meet everyone's needs, not just my own!

Responsibility & trust

🤝 A method that involves more than one person

Thermal contraception relies on the discipline of the person practicing it — but if not followed correctly, the consequences fall directly on another person's body. That's why this method is fundamentally built on reliability and trust.

The history and calendar in RingMate aren't just for personal tracking. They also provide a concrete way to reassure and show your partner that the method is being consistently followed day to day.

However, it's always important to keep in mind that this app does not in itself guarantee contraceptive effectiveness: a semen analysis remains the only way to confirm that the method is working properly.

FAQ: frequently asked questions

When and how should I wear the device each day?

The generally recommended wearing goal is 15 hours a day. People respond more or less effectively to the thermal method, which is why the goal can be adjusted for each user. It can be reached over several separate sessions throughout the day.

Wearing it overnight is not always recommended, for two reasons:

Body temperature drops at night: you may need to increase your daily goal to make sure the method remains effective.
The device can shift during sleep: in that case, there is no way to know how long it was actually worn effectively.

Ring Mate adapts to your rhythm — that's precisely why flexible session tracking was chosen over a fixed schedule.

Why is the goal calculated from midnight to midnight?

I considered a rolling 24-hour algorithm, but the conclusion is the same: if you don't meet your goal within a calendar day, you wouldn't have met it in a rolling window either. The result is identical, but a fixed window is much simpler to understand and follow. Midnight to midnight matches what you see in the calendar — it's concrete, readable, and makes daily planning easier. For sessions that cross midnight, the app handles an overnight session: it remembers when the session started and correctly allocates the time to each calendar day.

Is Ring Mate free?

Yes, Ring Mate is available for free on the Google Play Store. No subscription, no sign-up required. All your data stays on your phone.

Is Ring Mate available on iPhone (iOS)?

Ring Mate is currently only available on Android via the Google Play Store. An iOS version is being considered depending on demand and the success of the Android version.

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Ring Mate does not replace medical supervision

Testicular thermal contraception is a serious method that requires regular monitoring. Before starting, it's important to consult a doctor to check there are no contraindications. A baseline semen analysis should also be performed for comparison. Best practice is to repeat it every 3 months to confirm the method's effectiveness and ensure the contraceptive threshold is maintained. Ring Mate is a wear-time tracking tool — it is not a substitute for medical advice. If in doubt, consult a healthcare professional.